Add util/read_symbols.go
- Add util/read_symbols.go to read exported symbols from an AR
file for use with the symbol prefixing feature
- Move util/fipstools/fipscommon/ar.go -> util/ar/ar.go
- util/ar/ar.go: Support BSD-style AR files
Change-Id: I171b3b952e69c4b87ac04751b7dba3ea9bc2504e
Reviewed-on: https://boringssl-review.googlesource.com/32024
Reviewed-by: David Benjamin <davidben@google.com>
diff --git a/BUILDING.md b/BUILDING.md
index ab9b71d..01f5480 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -128,7 +128,11 @@
`/path/to/symbols.txt`.
It is currently the caller's responsibility to create and maintain the list of
-symbols to be prefixed.
+symbols to be prefixed. Alternatively, `util/read_symbols.go` reads the list of
+exported symbols from a `.a` file, and can be used in a build script to generate
+the symbol list on the fly (by building without prefixing, using
+`read_symbols.go` to construct a symbol list, and then building again with
+prefixing).
This mechanism is under development and may change over time. Please contact the
BoringSSL maintainers if making use of it.
